/*
Copyright 2017 Ziadin Givan

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

   http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.

https://github.com/givanz/VvvebJs
*/

Vvveb.CodeEditor = {
	
	isActive: false,
	oldValue: '',
	doc:false,
	codemirror:false,
	
	init: function(doc) {

		if (this.codemirror == false) {
			this.codemirror = CodeMirror.fromTextArea(document.querySelector("#vvveb-code-editor textarea"), {
				mode: 'text/html',
				lineNumbers: true,
				autofocus: true,
				lineWrapping: true,
				//viewportMargin:Infinity,
				theme: 'material'
			});
			
			this.isActive = true;
			this.codemirror.getDoc().on("change", function (e, v) { 
				if (v.origin != "setValue") {
					delay(() => {
						Vvveb.Builder.setHtml(e.getValue());
						//enable save button
						document.querySelectorAll("#top-panel .save-btn").forEach(e => e.removeAttribute("disabled"));
					}, 1000);
				}
			});
		}
		
		
		//load code on document changes
		Vvveb.Builder.frameBody.addEventListener("vvveb.undo.add", () => Vvveb.CodeEditor.setValue());
		Vvveb.Builder.frameBody.addEventListener("vvveb.undo.restore", () => Vvveb.CodeEditor.setValue());
		
		//load code when a new url is loaded
		Vvveb.Builder.documentFrame.addEventListener("load", () => Vvveb.CodeEditor.setValue());

		this.isActive = true;
		this.setValue();

		return this.codemirror;
	},

	setValue: function(value) {
		if (this.isActive == true) {
			let scrollInfo = this.codemirror.getScrollInfo();
			this.codemirror.setValue(Vvveb.Builder.getHtml());
			this.codemirror.scrollTo(scrollInfo.left, scrollInfo.top);
			let self = this;
			setTimeout(function() {
				self.codemirror.refresh();
			}, 300);
		}
	},

	destroy: function(element) {
		/*
		//save memory by destroying but lose scroll on editor toggle
		this.codemirror.toTextArea();
		this.codemirror = false;
		*/ 
		this.isActive = false;
	},

	toggle: function() {
		if (this.isActive != true) {
			this.isActive = true;
			return this.init();
		}
		this.isActive = false;
		this.destroy();
	}
}


// override modal code editor to use code mirror
Vvveb.ModalCodeEditor.init = function (modal = false, editor = false) {
	this.modal  = document.getElementById("codeEditorModal");
	this.editor = CodeMirror.fromTextArea(document.querySelector("#codeEditorModal textarea"), {
		mode: 'text/html',
		lineNumbers: true,
		autofocus: true,
		lineWrapping: true,
		//viewportMargin:Infinity,
		theme: 'material'
	});
	
	let self = this;
	this.modal.querySelector('.save-btn').addEventListener("click",  function(event) {
		window.dispatchEvent(new CustomEvent("vvveb.ModalCodeEditor.save", {detail: self.getValue()}));
		self.hide();
		return false;
	});
}

Vvveb.ModalCodeEditor.setValue = function (value) {
	let scrollInfo = this.editor.getScrollInfo();
	this.editor.setValue(value);
	this.editor.scrollTo(scrollInfo.left, scrollInfo.top);
	let self = this;
	setTimeout(function() {
		self.editor.refresh();
	}, 300);
};

Vvveb.ModalCodeEditor.getValue = function (value) {
	return this.editor.getValue();
};


Vvveb.CssEditor = {
	
	oldValue: '',
	doc:false,
	textarea:false,
	editor:false,
	
	init: function(doc) {
		this.textarea = document.getElementById("css-editor");
		this.editor = CodeMirror.fromTextArea(this.textarea, {
			mode: 'text/css',
			lineNumbers: true,
			autofocus: true,
			lineWrapping: true,
			//viewportMargin:Infinity,
			theme: 'material'
		});		
		
		let self = this;
		
		document.querySelectorAll('[href="#css-tab"],[href="#configuration"]').forEach( t => t.addEventListener("click", e => {
			self.setValue(Vvveb.StyleManager.getCss());
		}));
		
		this.editor.getDoc().on("change", function (e, v) { 
			if (v.origin != "setValue")
			delay(() => Vvveb.StyleManager.setCss(e.getValue()), 1000);
		});
	},

	getValue: function() {
		return this.editor.getValue();
	},
	
	setValue: function(value) {
		let scrollInfo = this.editor.getScrollInfo();
		this.editor.setValue(value);
		this.editor.scrollTo(scrollInfo.left, scrollInfo.top);
		let self = this;
		setTimeout(function() {
			self.editor.refresh();
		}, 300);
		//Vvveb.StyleManager.setCss(value);
	},

	destroy: function(element) {
	}
}
